US6043793A - GPS antenna cover - Google Patents

GPS antenna cover Download PDF

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Publication number
US6043793A
US6043793A US09/141,419 US14141998A US6043793A US 6043793 A US6043793 A US 6043793A US 14141998 A US14141998 A US 14141998A US 6043793 A US6043793 A US 6043793A
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US
United States
Prior art keywords
gps antenna
side walls
cover
outer side
top wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US09/141,419
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English (en)
Inventor
Nobuo Tamura
Takeshi Saito
Junichi Noro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsumi Electric Co Ltd
Original Assignee
Mitsumi Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsumi Electric Co Ltd filed Critical Mitsumi Electric Co Ltd
Assigned to MITSUMI ELECTRIC CO., LTD. reassignment MITSUMI ELECTRIC CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NORO, JUNICHI, SAITO, TAKESHI, TAMURA, NOBUO
Application granted granted Critical
Publication of US6043793A publication Critical patent/US6043793A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/35—Constructional details or hardware or software details of the signal processing chain
    • G01S19/36—Constructional details or hardware or software details of the signal processing chain relating to the receiver frond end

Definitions

  • the present invention relates to a GPS (Global Positioning System) antenna cover which contains a GPS antenna unit, and is mounted on an exterior equipment.
  • GPS Global Positioning System
  • GPS systems which have been extensively used as a positioning system, need a GPS antenna for receiving radio waves from satellites in the constellation of GPS satellites.
  • the installation of this GPS antenna must be done, using a horizontal surface as a reference, and when building a car-carried GPS system, the provision of a GPS antenna mounting mechanism is important.
  • a GPS antenna itself is flat, and small in size, and generally this antenna and a high-frequency circuit board (for effecting processings for the received radio waves, such as noise removal and amplification) are combined together to form a unit (GPS antenna unit), and this unit is contained in a cover (casing) made of a resin, and this product is mounted on an exterior equipment such as a bracket made of metal.
  • a conventional antenna cover comprises a box top cover, and a bottom cover for closing an opened bottom portion of the top cover after a GPS antenna unit is accommodated in the top cover, and the top cover and the bottom cover are fastened together, for example, by screws or an adhesive.
  • a GPS antenna cover which comprises: a box cover body formed by a top wall and four side walls, the cover body having an opened bottom; a GPS antenna receiving chamber defined by four inner walls extending perpendicularly from an inner face of the top wall toward the bottom; and a first holding member formed on and projecting inwardly from inner faces of the inner side walls for holding a GPS antenna unit from the side of the bottom, the GPS antenna unit inserted into the antenna receiving chamber through the bottom.
  • the antenna receiving chamber includes a second holding member formed on and projecting inwardly from the inner face of the top wall for abutting against an upper face of the GPS antenna unit and urging the GPS antenna unit from the side of the top wall.
  • the cover body includes an engagement member provided on the side wall and engaging with a mounting member provided on an exterior equipment on which the GPS antenna cover is mounted.
  • the engagement member may be formed on and projects outwardly from an outer face of the side wall, and the mounting member may engage with the engagement member from outside of the cover body.
  • the engagement member may be formed on and projects inwardly from an inner face of the side wall, and the mounting member may engage with the engagement member from inside of the cover body.
  • the engagement member may be formed on and projects outwardly from an outer face of the side wall and may be engaged with the mounting member by a screw.
  • FIG. 1 is a cross-sectional view of one preferred embodiment of a GPS antenna cover of the present invention
  • FIG. 2 is a cross-sectional view of the GPS antenna cover of FIG. 1 incorporating a GPS antenna unit;
  • FIG. 3 is a plan view of another embodiment of a GPS antenna cover of the invention.
  • FIG. 4 is a side-elevational view of the GPS antenna cover of FIG. 3;
  • FIG. 5 is a cross-sectional view of the GPS antenna cover of FIG. 4;
  • FIG. 6 is a rear view of the GPS antenna cover of FIG. 3;
  • FIG. 7 is a side-elevational view of a bracket on which GPS antenna cover is mounted.
  • FIGS. 1 and 2 are cross-sectional views of one preferred embodiment of the invention.
  • a box cover body 10 is formed by a top wall 11 and four outer side walls 12, and has an opened bottom 13.
  • a GPS antenna receiving chamber 20 is formed by four inner side walls 21 extending perpendicularly from the top wall 11 to the bottom 13.
  • a plurality of engagement piece portions 22 are formed on and project inwardly from the inner walls 21, and these engagement piece portions 22 hold a GPS antenna unit 30 inserted into the antenna receiving chamber 20 through the bottom 13. These parts jointly constitute a GPS antenna cover 40 of the present invention.
  • the GPS antenna unit 30 comprises a flat GPS antenna element 31, a printed circuit board 32 mounted on a lower surface of this antenna element, and a shield casing 33 of metal which encloses high-frequency circuit parts (not shown), mounted on this printed circuit board, to shield the same.
  • the printed circuit board 32 provided at a central portion of the GPS antenna unit 30, is engaged with the engagement piece portions 22, thereby supporting this GPS antenna unit 30 against disengagement from the antenna receiving chamber 20.
  • the antenna receiving chamber 20 has holding projections 14 which are formed on and project inwardly from the top wall 11 so as to abut against the upper surface of the antenna unit 30, and the antenna unit 30 is firmly fixed by the elasticity of the holding projections 14. Therefore, in the present invention, there is no need to provide a bottom cover for closing the opened bottom 13 of the antenna cover 10 (corresponding to the top cover of the conventional antenna cover).
  • FIG. 3 is a plan view of another embodiment of the present invention which differs from the embodiment of FIGS. 1 and 2 in that it further includes mounting means for mounting an antenna cover on an exterior equipment
  • FIG. 4 is a side-elevational view thereof
  • FIG. 5 is a vertical cross-sectional view of the antenna cover of FIG. 4
  • FIG. 6 is a bottom view thereof.
  • a cover body 10 has fastening piece portions 16 formed on and projecting outwardly respectively from two of four outer side walls 12, and each fastening piece portion 16 has a screw hole 15 for holding a screw by which the antenna cover is fastened to the exterior equipment, such as a bracket.
  • the cover body 10 has mounting claws 17 formed on outer surfaces of the outer walls 12, and the antenna cover can be mounted on the exterior equipment through these mounting claws 17.
  • mounting claws 18 are formed on inner surfaces of the outer walls 12, and the antenna cover can be mounted on the exterior equipment through these mounting claws 18.
  • FIG. 7 is a side-elevational view of one example of a bracket 50 serving as an exterior equipment.
  • An upper surface of a horizontal portion 51 of the generally inverted L-shaped bracket 50 serves as a mounting portion on which the GPS antenna cover 40 is mounted.
  • the horizontal portion 51 has upstanding portion 52 formed thereon by stamping, and the antenna cover 40, containing the GPS antenna unit, is mounted horizontally on the horizontal portion 51 by the use of the upstanding portions 52.
  • each of the upstanding portions 52 has an engagement hole
  • the bracket has such a configuration and size that the mounting claws 18, projecting from the inner surface of the antenna cover 40, can be utilized, the mounting claws 18 are engaged respectively in the engagement holes, formed respectively in the upstanding portions 52, in such a manner that the upstanding portions 52 are covered with the cover 40.
  • the outer mounting claws 17 are utilized.
  • screw holes are formed in the horizontal portion of the bracket 50, and the cover 40 is screw-fastened to the bracket, utilizing the fastening piece portions 16. In this manner, the antenna cover of the present invention can be mounted on the brackets of almost all kinds of cars.
  • the GPS antenna cover in which the antenna can be mounted on various kinds of brackets with the use of the antenna cover of only one kind, and besides the number of the component parts, as well as the time and labor required for the assembling operation, is reduced.

Landscapes

  • Position Fixing By Use Of Radio Waves (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
US09/141,419 1997-08-29 1998-08-27 GPS antenna cover Expired - Lifetime US6043793A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9-249987 1997-08-29
JP9249987A JPH1174716A (ja) 1997-08-29 1997-08-29 Ｇｐｓアンテナカバー

Publications (1)

Publication Number Publication Date
US6043793A true US6043793A (en) 2000-03-28

Family

ID=17201155

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/141,419 Expired - Lifetime US6043793A (en) 1997-08-29 1998-08-27 GPS antenna cover

Country Status (3)

Country Link
US (1) US6043793A (ja)
JP (1) JPH1174716A (ja)
DE (1) DE19839030B4 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6710745B2 (en) * 2000-01-31 2004-03-23 Hitachi, Ltd. High-frequency communication apparatus and method of manufacturing the same
US20060220968A1 (en) * 2005-03-31 2006-10-05 Arabio William C Wireless signal transmission restriction device
CN1825699B (zh) * 2005-02-24 2011-08-31 三美电机株式会社 天线装置及顶罩
FR2962599A1 (fr) * 2010-07-07 2012-01-13 Valeo Securite Habitacle Module d'antenne pour vehicule comprenant un circuit et un support d'antenne

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2359208B (en) * 2000-01-27 2004-02-18 Tmc Consultancy Ltd A tracking transmitter/receiver device
JP4812514B2 (ja) * 2006-05-24 2011-11-09 日本アンテナ株式会社 アンテナ装置
JP2008109464A (ja) 2006-10-26 2008-05-08 Mitsumi Electric Co Ltd アンテナ装置
JP4290746B2 (ja) * 2007-03-28 2009-07-08 レノボ・シンガポール・プライベート・リミテッド 携帯式コンピュータおよびアンテナ距離設定機構
JP4924358B2 (ja) * 2007-10-25 2012-04-25 株式会社デンソー 収納ユニット

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728962A (en) * 1984-10-12 1988-03-01 Matsushita Electric Works, Ltd. Microwave plane antenna
US5757327A (en) * 1994-07-29 1998-05-26 Mitsumi Electric Co., Ltd. Antenna unit for use in navigation system
US5844529A (en) * 1997-04-07 1998-12-01 Electromagnetic Sciences, Inc. Antenna enclosure with a stress-free connection along the length of the radome
US5896107A (en) * 1997-05-27 1999-04-20 Allen Telecom Inc. Dual polarized aperture coupled microstrip patch antenna system
US5900845A (en) * 1995-09-05 1999-05-04 Murata Manufacturing Co., Ltd. Antenna device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05167345A (ja) * 1991-12-18 1993-07-02 Maspro Denkoh Corp アンテナ
JPH06152211A (ja) * 1992-11-09 1994-05-31 Nippondenso Co Ltd 平面アンテナ
JP3508352B2 (ja) * 1995-12-15 2004-03-22 松下電工株式会社 アンテナ装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728962A (en) * 1984-10-12 1988-03-01 Matsushita Electric Works, Ltd. Microwave plane antenna
US5757327A (en) * 1994-07-29 1998-05-26 Mitsumi Electric Co., Ltd. Antenna unit for use in navigation system
US5900845A (en) * 1995-09-05 1999-05-04 Murata Manufacturing Co., Ltd. Antenna device
US5844529A (en) * 1997-04-07 1998-12-01 Electromagnetic Sciences, Inc. Antenna enclosure with a stress-free connection along the length of the radome
US5896107A (en) * 1997-05-27 1999-04-20 Allen Telecom Inc. Dual polarized aperture coupled microstrip patch antenna system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6710745B2 (en) * 2000-01-31 2004-03-23 Hitachi, Ltd. High-frequency communication apparatus and method of manufacturing the same
CN1825699B (zh) * 2005-02-24 2011-08-31 三美电机株式会社 天线装置及顶罩
US20060220968A1 (en) * 2005-03-31 2006-10-05 Arabio William C Wireless signal transmission restriction device
FR2962599A1 (fr) * 2010-07-07 2012-01-13 Valeo Securite Habitacle Module d'antenne pour vehicule comprenant un circuit et un support d'antenne

Also Published As

Publication number Publication date
DE19839030B4 (de) 2007-08-02
DE19839030A1 (de) 1999-03-04
JPH1174716A (ja) 1999-03-16

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AS Assignment

Owner name: MITSUMI ELECTRIC CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAMURA, NOBUO;SAITO, TAKESHI;NORO, JUNICHI;REEL/FRAME:009536/0100

Effective date: 19980922

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